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1. (WO2018126502) SHELL MOLD SINTERING DEVICE AND METHOD

Pub. No.:    WO/2018/126502    International Application No.:    PCT/CN2017/072411
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Wed Jan 25 00:59:59 CET 2017
IPC: B22C 7/02
Applicants: TSAI, Yuchi
蔡欲期
Inventors: TSAI, Yuchi
蔡欲期
CAI, Zhengda
蔡政达
CAI, Yaoming
蔡耀明
Title: SHELL MOLD SINTERING DEVICE AND METHOD
Abstract:
A shell mold sintering device and method are provided, belonging to the technical field of precision casting. The shell mold sintering device comprises a sintering cavity (1). A shell mold holding platform (2) is disposed in the sintering cavity (1). The shell mold sintering device is an electric furnace. An upper surface of the shell mold holding platform (2) is provided with multiple grooves (21). The grooves (21) extend in a lengthwise direction of the sintering cavity (1). A first air intake tube (6) used to supply air is disposed in the sintering cavity (1). The first air intake tube (6) is connected to a blower and is provided with a first nozzle (61) facing the grooves (21). A second nozzle (71) used to supply a combustible gas or liquid is further disposed in the sintering cavity (1). A flue gas outlet (4) is positioned higher than the shell mold holding platform (2). The device of the invention can greatly shorten a wax melting period and enable the environment in the sintering furnace to change from high to low oxygen, or to be oxygen-free, as soon as possible after wax melting is completed, and carbon powder added into a shell mold is not burned up, ensuring shell mold quality and thus improving casting quality.